Home / 279,717.14-386,017.16-152,400.93

Finding the Fourth Proportional to 279,717.14, 386,017.16 and 152,400.93

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Solution

The fourth proportional to 279,717.14, 386,017.16 and 152,400.93 is: 210,317.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,717.14 : 386,017.16 = 152,400.93 : x
  2. Step 2: Convert to fraction form
    279,717.14/386,017.16 = 152,400.93/x
  3. Step 3: Cross multiply
    279,717.14x = 386,017.16 × 152,400.93
  4. Step 4: Simplify right side
    279,717.14x = 58,829,373,417.95
  5. Step 5: Solve for x
    x = 58,829,373,417.95/279,717.14
  6. Step 6: Final answer
    x = 210,317.37

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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.