Home / 283,746.61-391,567.74-156,422.20

Finding the Fourth Proportional to 283,746.61, 391,567.74 and 156,422.20

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Solution

The fourth proportional to 283,746.61, 391,567.74 and 156,422.20 is: 215,861.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,746.61 : 391,567.74 = 156,422.20 : x
  2. Step 2: Convert to fraction form
    283,746.61/391,567.74 = 156,422.20/x
  3. Step 3: Cross multiply
    283,746.61x = 391,567.74 × 156,422.20
  4. Step 4: Simplify right side
    283,746.61x = 61,249,885,381.99
  5. Step 5: Solve for x
    x = 61,249,885,381.99/283,746.61
  6. Step 6: Final answer
    x = 215,861.21

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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.