Home / 279,726.16-386,022.14-152,401.76

Finding the Fourth Proportional to 279,726.16, 386,022.14 and 152,401.76

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Solution

The fourth proportional to 279,726.16, 386,022.14 and 152,401.76 is: 210,314.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,726.16 : 386,022.14 = 152,401.76 : x
  2. Step 2: Convert to fraction form
    279,726.16/386,022.14 = 152,401.76/x
  3. Step 3: Cross multiply
    279,726.16x = 386,022.14 × 152,401.76
  4. Step 4: Simplify right side
    279,726.16x = 58,830,453,534.97
  5. Step 5: Solve for x
    x = 58,830,453,534.97/279,726.16
  6. Step 6: Final answer
    x = 210,314.45

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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.