Home / 212,458.02-318,687.06-70,265.13

Finding the Fourth Proportional to 212,458.02, 318,687.06 and 70,265.13

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Solution

The fourth proportional to 212,458.02, 318,687.06 and 70,265.13 is: 105,397.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,458.02 : 318,687.06 = 70,265.13 : x
  2. Step 2: Convert to fraction form
    212,458.02/318,687.06 = 70,265.13/x
  3. Step 3: Cross multiply
    212,458.02x = 318,687.06 × 70,265.13
  4. Step 4: Simplify right side
    212,458.02x = 22,392,587,700.22
  5. Step 5: Solve for x
    x = 22,392,587,700.22/212,458.02
  6. Step 6: Final answer
    x = 105,397.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.