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Finding the Fourth Proportional to 356,007.32, 534,009.54 and 145,645.10

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Solution

The fourth proportional to 356,007.32, 534,009.54 and 145,645.10 is: 218,467.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,007.32 : 534,009.54 = 145,645.10 : x
  2. Step 2: Convert to fraction form
    356,007.32/534,009.54 = 145,645.10/x
  3. Step 3: Cross multiply
    356,007.32x = 534,009.54 × 145,645.10
  4. Step 4: Simplify right side
    356,007.32x = 77,775,872,854.25
  5. Step 5: Solve for x
    x = 77,775,872,854.25/356,007.32
  6. Step 6: Final answer
    x = 218,467.06

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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.