Home / 283,835.16-391,684.14-156,510.72

Finding the Fourth Proportional to 283,835.16, 391,684.14 and 156,510.72

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Solution

The fourth proportional to 283,835.16, 391,684.14 and 156,510.72 is: 215,980.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,835.16 : 391,684.14 = 156,510.72 : x
  2. Step 2: Convert to fraction form
    283,835.16/391,684.14 = 156,510.72/x
  3. Step 3: Cross multiply
    283,835.16x = 391,684.14 × 156,510.72
  4. Step 4: Simplify right side
    283,835.16x = 61,302,766,763.98
  5. Step 5: Solve for x
    x = 61,302,766,763.98/283,835.16
  6. Step 6: Final answer
    x = 215,980.17

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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.