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Finding the Fourth Proportional to 346,656.02, 478,407.62 and 203,363.78

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Solution

The fourth proportional to 346,656.02, 478,407.62 and 203,363.78 is: 280,655.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,656.02 : 478,407.62 = 203,363.78 : x
  2. Step 2: Convert to fraction form
    346,656.02/478,407.62 = 203,363.78/x
  3. Step 3: Cross multiply
    346,656.02x = 478,407.62 × 203,363.78
  4. Step 4: Simplify right side
    346,656.02x = 97,290,780,967.18
  5. Step 5: Solve for x
    x = 97,290,780,967.18/346,656.02
  6. Step 6: Final answer
    x = 280,655.10

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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.