Home / 348,117.60-521,485.20-207,458.40

Finding the Fourth Proportional to 348,117.60, 521,485.20 and 207,458.40

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Solution

The fourth proportional to 348,117.60, 521,485.20 and 207,458.40 is: 310,775.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,117.60 : 521,485.20 = 207,458.40 : x
  2. Step 2: Convert to fraction form
    348,117.60/521,485.20 = 207,458.40/x
  3. Step 3: Cross multiply
    348,117.60x = 521,485.20 × 207,458.40
  4. Step 4: Simplify right side
    348,117.60x = 108,186,485,215.68
  5. Step 5: Solve for x
    x = 108,186,485,215.68/348,117.60
  6. Step 6: Final answer
    x = 310,775.68

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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.