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Finding the Fourth Proportional to 520,159.13, 780,238.69 and 146,182.13

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Solution

The fourth proportional to 520,159.13, 780,238.69 and 146,182.13 is: 219,273.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,159.13 : 780,238.69 = 146,182.13 : x
  2. Step 2: Convert to fraction form
    520,159.13/780,238.69 = 146,182.13/x
  3. Step 3: Cross multiply
    520,159.13x = 780,238.69 × 146,182.13
  4. Step 4: Simplify right side
    520,159.13x = 114,056,949,345.96
  5. Step 5: Solve for x
    x = 114,056,949,345.96/520,159.13
  6. Step 6: Final answer
    x = 219,273.19

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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.