Home / 370,331.60-555,497.40-121,038.80

Finding the Fourth Proportional to 370,331.60, 555,497.40 and 121,038.80

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Solution

The fourth proportional to 370,331.60, 555,497.40 and 121,038.80 is: 181,558.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,331.60 : 555,497.40 = 121,038.80 : x
  2. Step 2: Convert to fraction form
    370,331.60/555,497.40 = 121,038.80/x
  3. Step 3: Cross multiply
    370,331.60x = 555,497.40 × 121,038.80
  4. Step 4: Simplify right side
    370,331.60x = 67,236,738,699.12
  5. Step 5: Solve for x
    x = 67,236,738,699.12/370,331.60
  6. Step 6: Final answer
    x = 181,558.20

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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.