Home / 355,934.60-533,901.90-145,723.40

Finding the Fourth Proportional to 355,934.60, 533,901.90 and 145,723.40

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Solution

The fourth proportional to 355,934.60, 533,901.90 and 145,723.40 is: 218,585.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,934.60 : 533,901.90 = 145,723.40 : x
  2. Step 2: Convert to fraction form
    355,934.60/533,901.90 = 145,723.40/x
  3. Step 3: Cross multiply
    355,934.60x = 533,901.90 × 145,723.40
  4. Step 4: Simplify right side
    355,934.60x = 77,802,000,134.46
  5. Step 5: Solve for x
    x = 77,802,000,134.46/355,934.60
  6. Step 6: Final answer
    x = 218,585.10

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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.