Home / 385,017.34-531,347.16-215,252.68

Finding the Fourth Proportional to 385,017.34, 531,347.16 and 215,252.68

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Solution

The fourth proportional to 385,017.34, 531,347.16 and 215,252.68 is: 297,061.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,017.34 : 531,347.16 = 215,252.68 : x
  2. Step 2: Convert to fraction form
    385,017.34/531,347.16 = 215,252.68/x
  3. Step 3: Cross multiply
    385,017.34x = 531,347.16 × 215,252.68
  4. Step 4: Simplify right side
    385,017.34x = 114,373,900,200.39
  5. Step 5: Solve for x
    x = 114,373,900,200.39/385,017.34
  6. Step 6: Final answer
    x = 297,061.69

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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.