Home / 287,017.12-430,791.70-144,962.15

Finding the Fourth Proportional to 287,017.12, 430,791.70 and 144,962.15

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Solution

The fourth proportional to 287,017.12, 430,791.70 and 144,962.15 is: 217,577.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,017.12 : 430,791.70 = 144,962.15 : x
  2. Step 2: Convert to fraction form
    287,017.12/430,791.70 = 144,962.15/x
  3. Step 3: Cross multiply
    287,017.12x = 430,791.70 × 144,962.15
  4. Step 4: Simplify right side
    287,017.12x = 62,448,491,034.16
  5. Step 5: Solve for x
    x = 62,448,491,034.16/287,017.12
  6. Step 6: Final answer
    x = 217,577.58

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1.5x scale

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.