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Finding the Fourth Proportional to 355,572.76, 533,359.68 and 145,210.72

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Solution

The fourth proportional to 355,572.76, 533,359.68 and 145,210.72 is: 217,816.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,572.76 : 533,359.68 = 145,210.72 : x
  2. Step 2: Convert to fraction form
    355,572.76/533,359.68 = 145,210.72/x
  3. Step 3: Cross multiply
    355,572.76x = 533,359.68 × 145,210.72
  4. Step 4: Simplify right side
    355,572.76x = 77,449,543,151.77
  5. Step 5: Solve for x
    x = 77,449,543,151.77/355,572.76
  6. Step 6: Final answer
    x = 217,816.30

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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.