Home / 283,741.07-391,565.28-156,421.22

Finding the Fourth Proportional to 283,741.07, 391,565.28 and 156,421.22

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Solution

The fourth proportional to 283,741.07, 391,565.28 and 156,421.22 is: 215,862.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,741.07 : 391,565.28 = 156,421.22 : x
  2. Step 2: Convert to fraction form
    283,741.07/391,565.28 = 156,421.22/x
  3. Step 3: Cross multiply
    283,741.07x = 391,565.28 × 156,421.22
  4. Step 4: Simplify right side
    283,741.07x = 61,249,116,849.42
  5. Step 5: Solve for x
    x = 61,249,116,849.42/283,741.07
  6. Step 6: Final answer
    x = 215,862.72

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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.