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Finding the Fourth Proportional to 348,006.60, 522,009.90 and 98,688.60

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Solution

The fourth proportional to 348,006.60, 522,009.90 and 98,688.60 is: 148,032.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,006.60 : 522,009.90 = 98,688.60 : x
  2. Step 2: Convert to fraction form
    348,006.60/522,009.90 = 98,688.60/x
  3. Step 3: Cross multiply
    348,006.60x = 522,009.90 × 98,688.60
  4. Step 4: Simplify right side
    348,006.60x = 51,516,426,217.14
  5. Step 5: Solve for x
    x = 51,516,426,217.14/348,006.60
  6. Step 6: Final answer
    x = 148,032.90

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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.