Home / 215,688.64-297,565.42-144,115.40

Finding the Fourth Proportional to 215,688.64, 297,565.42 and 144,115.40

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Solution

The fourth proportional to 215,688.64, 297,565.42 and 144,115.40 is: 198,822.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,688.64 : 297,565.42 = 144,115.40 : x
  2. Step 2: Convert to fraction form
    215,688.64/297,565.42 = 144,115.40/x
  3. Step 3: Cross multiply
    215,688.64x = 297,565.42 × 144,115.40
  4. Step 4: Simplify right side
    215,688.64x = 42,883,759,529.47
  5. Step 5: Solve for x
    x = 42,883,759,529.47/215,688.64
  6. Step 6: Final answer
    x = 198,822.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.