Home / 370,211.39-555,317.09-89,728.64

Finding the Fourth Proportional to 370,211.39, 555,317.09 and 89,728.64

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Solution

The fourth proportional to 370,211.39, 555,317.09 and 89,728.64 is: 134,592.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,211.39 : 555,317.09 = 89,728.64 : x
  2. Step 2: Convert to fraction form
    370,211.39/555,317.09 = 89,728.64/x
  3. Step 3: Cross multiply
    370,211.39x = 555,317.09 × 89,728.64
  4. Step 4: Simplify right side
    370,211.39x = 49,827,848,430.58
  5. Step 5: Solve for x
    x = 49,827,848,430.58/370,211.39
  6. Step 6: Final answer
    x = 134,592.96

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.