Home / 291,966.80-402,884.08-215,526.56

Finding the Fourth Proportional to 291,966.80, 402,884.08 and 215,526.56

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Solution

The fourth proportional to 291,966.80, 402,884.08 and 215,526.56 is: 297,404.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,966.80 : 402,884.08 = 215,526.56 : x
  2. Step 2: Convert to fraction form
    291,966.80/402,884.08 = 215,526.56/x
  3. Step 3: Cross multiply
    291,966.80x = 402,884.08 × 215,526.56
  4. Step 4: Simplify right side
    291,966.80x = 86,832,219,841.16
  5. Step 5: Solve for x
    x = 86,832,219,841.16/291,966.80
  6. Step 6: Final answer
    x = 297,404.43

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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.