Home / 278,547.40-384,505.14-187,957

Finding the Fourth Proportional to 278,547.40, 384,505.14 and 187,957

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Solution

The fourth proportional to 278,547.40, 384,505.14 and 187,957 is: 259,454.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,547.40 : 384,505.14 = 187,957 : x
  2. Step 2: Convert to fraction form
    278,547.40/384,505.14 = 187,957/x
  3. Step 3: Cross multiply
    278,547.40x = 384,505.14 × 187,957
  4. Step 4: Simplify right side
    278,547.40x = 72,270,432,598.98
  5. Step 5: Solve for x
    x = 72,270,432,598.98/278,547.40
  6. Step 6: Final answer
    x = 259,454.70

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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.