Home / 283,355.51-391,033.46-156,031.61

Finding the Fourth Proportional to 283,355.51, 391,033.46 and 156,031.61

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Solution

The fourth proportional to 283,355.51, 391,033.46 and 156,031.61 is: 215,325.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,355.51 : 391,033.46 = 156,031.61 : x
  2. Step 2: Convert to fraction form
    283,355.51/391,033.46 = 156,031.61/x
  3. Step 3: Cross multiply
    283,355.51x = 391,033.46 × 156,031.61
  4. Step 4: Simplify right side
    283,355.51x = 61,013,579,547.51
  5. Step 5: Solve for x
    x = 61,013,579,547.51/283,355.51
  6. Step 6: Final answer
    x = 215,325.19

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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.