Home / 287,613.48-396,907.85-158,549.19

Finding the Fourth Proportional to 287,613.48, 396,907.85 and 158,549.19

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Solution

The fourth proportional to 287,613.48, 396,907.85 and 158,549.19 is: 218,798.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,613.48 : 396,907.85 = 158,549.19 : x
  2. Step 2: Convert to fraction form
    287,613.48/396,907.85 = 158,549.19/x
  3. Step 3: Cross multiply
    287,613.48x = 396,907.85 × 158,549.19
  4. Step 4: Simplify right side
    287,613.48x = 62,929,418,122.14
  5. Step 5: Solve for x
    x = 62,929,418,122.14/287,613.48
  6. Step 6: Final answer
    x = 218,798.57

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1.5x scale

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.