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Finding the Fourth Proportional to 370,718.80, 556,101.72 and 130,802.80

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Solution

The fourth proportional to 370,718.80, 556,101.72 and 130,802.80 is: 196,212.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,718.80 : 556,101.72 = 130,802.80 : x
  2. Step 2: Convert to fraction form
    370,718.80/556,101.72 = 130,802.80/x
  3. Step 3: Cross multiply
    370,718.80x = 556,101.72 × 130,802.80
  4. Step 4: Simplify right side
    370,718.80x = 72,739,662,060.82
  5. Step 5: Solve for x
    x = 72,739,662,060.82/370,718.80
  6. Step 6: Final answer
    x = 196,212.50

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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.