Home / 292,390.12-403,498.38-158,254.12

Finding the Fourth Proportional to 292,390.12, 403,498.38 and 158,254.12

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Solution

The fourth proportional to 292,390.12, 403,498.38 and 158,254.12 is: 218,390.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,390.12 : 403,498.38 = 158,254.12 : x
  2. Step 2: Convert to fraction form
    292,390.12/403,498.38 = 158,254.12/x
  3. Step 3: Cross multiply
    292,390.12x = 403,498.38 × 158,254.12
  4. Step 4: Simplify right side
    292,390.12x = 63,855,281,048.33
  5. Step 5: Solve for x
    x = 63,855,281,048.33/292,390.12
  6. Step 6: Final answer
    x = 218,390.69

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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.