Home / 346,445.28-478,165.68-203,280.48

Finding the Fourth Proportional to 346,445.28, 478,165.68 and 203,280.48

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Solution

The fourth proportional to 346,445.28, 478,165.68 and 203,280.48 is: 280,568.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,445.28 : 478,165.68 = 203,280.48 : x
  2. Step 2: Convert to fraction form
    346,445.28/478,165.68 = 203,280.48/x
  3. Step 3: Cross multiply
    346,445.28x = 478,165.68 × 203,280.48
  4. Step 4: Simplify right side
    346,445.28x = 97,201,748,949.93
  5. Step 5: Solve for x
    x = 97,201,748,949.93/346,445.28
  6. Step 6: Final answer
    x = 280,568.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.