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Finding the Fourth Proportional to 370,471.68, 555,707.52 and 89,987.04

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Solution

The fourth proportional to 370,471.68, 555,707.52 and 89,987.04 is: 134,980.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,471.68 : 555,707.52 = 89,987.04 : x
  2. Step 2: Convert to fraction form
    370,471.68/555,707.52 = 89,987.04/x
  3. Step 3: Cross multiply
    370,471.68x = 555,707.52 × 89,987.04
  4. Step 4: Simplify right side
    370,471.68x = 50,006,474,830.54
  5. Step 5: Solve for x
    x = 50,006,474,830.54/370,471.68
  6. Step 6: Final answer
    x = 134,980.56

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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.