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Finding the Fourth Proportional to 348,050.60, 521,384.70 and 207,391.40

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Solution

The fourth proportional to 348,050.60, 521,384.70 and 207,391.40 is: 310,675.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,050.60 : 521,384.70 = 207,391.40 : x
  2. Step 2: Convert to fraction form
    348,050.60/521,384.70 = 207,391.40/x
  3. Step 3: Cross multiply
    348,050.60x = 521,384.70 × 207,391.40
  4. Step 4: Simplify right side
    348,050.60x = 108,130,702,871.58
  5. Step 5: Solve for x
    x = 108,130,702,871.58/348,050.60
  6. Step 6: Final answer
    x = 310,675.24

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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.