Home / 286,547.28-395,417.88-159,218.52

Finding the Fourth Proportional to 286,547.28, 395,417.88 and 159,218.52

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Solution

The fourth proportional to 286,547.28, 395,417.88 and 159,218.52 is: 219,711.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,547.28 : 395,417.88 = 159,218.52 : x
  2. Step 2: Convert to fraction form
    286,547.28/395,417.88 = 159,218.52/x
  3. Step 3: Cross multiply
    286,547.28x = 395,417.88 × 159,218.52
  4. Step 4: Simplify right side
    286,547.28x = 62,957,849,635.14
  5. Step 5: Solve for x
    x = 62,957,849,635.14/286,547.28
  6. Step 6: Final answer
    x = 219,711.91

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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.