Home / 280,565.10-387,179.84-153,241.00

Finding the Fourth Proportional to 280,565.10, 387,179.84 and 153,241.00

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Solution

The fourth proportional to 280,565.10, 387,179.84 and 153,241.00 is: 211,472.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,565.10 : 387,179.84 = 153,241.00 : x
  2. Step 2: Convert to fraction form
    280,565.10/387,179.84 = 153,241.00/x
  3. Step 3: Cross multiply
    280,565.10x = 387,179.84 × 153,241.00
  4. Step 4: Simplify right side
    280,565.10x = 59,331,823,159.34
  5. Step 5: Solve for x
    x = 59,331,823,159.34/280,565.10
  6. Step 6: Final answer
    x = 211,472.57

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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.