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Finding the Fourth Proportional to 341,484.40, 512,647.80 and 215,124.40

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Solution

The fourth proportional to 341,484.40, 512,647.80 and 215,124.40 is: 322,951.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,484.40 : 512,647.80 = 215,124.40 : x
  2. Step 2: Convert to fraction form
    341,484.40/512,647.80 = 215,124.40/x
  3. Step 3: Cross multiply
    341,484.40x = 512,647.80 × 215,124.40
  4. Step 4: Simplify right side
    341,484.40x = 110,283,050,386.32
  5. Step 5: Solve for x
    x = 110,283,050,386.32/341,484.40
  6. Step 6: Final answer
    x = 322,951.94

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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.