Home / 287,072.20-429,555.12-239,570.02

Finding the Fourth Proportional to 287,072.20, 429,555.12 and 239,570.02

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Solution

The fourth proportional to 287,072.20, 429,555.12 and 239,570.02 is: 358,476.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,072.20 : 429,555.12 = 239,570.02 : x
  2. Step 2: Convert to fraction form
    287,072.20/429,555.12 = 239,570.02/x
  3. Step 3: Cross multiply
    287,072.20x = 429,555.12 × 239,570.02
  4. Step 4: Simplify right side
    287,072.20x = 102,908,528,689.50
  5. Step 5: Solve for x
    x = 102,908,528,689.50/287,072.20
  6. Step 6: Final answer
    x = 358,476.12

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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.