Home / 348,043.60-521,374.20-207,384.40

Finding the Fourth Proportional to 348,043.60, 521,374.20 and 207,384.40

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Solution

The fourth proportional to 348,043.60, 521,374.20 and 207,384.40 is: 310,664.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,043.60 : 521,374.20 = 207,384.40 : x
  2. Step 2: Convert to fraction form
    348,043.60/521,374.20 = 207,384.40/x
  3. Step 3: Cross multiply
    348,043.60x = 521,374.20 × 207,384.40
  4. Step 4: Simplify right side
    348,043.60x = 108,124,875,642.48
  5. Step 5: Solve for x
    x = 108,124,875,642.48/348,043.60
  6. Step 6: Final answer
    x = 310,664.74

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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.