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Finding the Fourth Proportional to 341,390, 511,948.08 and 141,574.64

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Solution

The fourth proportional to 341,390, 511,948.08 and 141,574.64 is: 212,305.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,390 : 511,948.08 = 141,574.64 : x
  2. Step 2: Convert to fraction form
    341,390/511,948.08 = 141,574.64/x
  3. Step 3: Cross multiply
    341,390x = 511,948.08 × 141,574.64
  4. Step 4: Simplify right side
    341,390x = 72,478,865,124.69
  5. Step 5: Solve for x
    x = 72,478,865,124.69/341,390
  6. Step 6: Final answer
    x = 212,305.18

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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.