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Finding the Fourth Proportional to 346,482.67, 478,011.90 and 203,190.43

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Solution

The fourth proportional to 346,482.67, 478,011.90 and 203,190.43 is: 280,324.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,482.67 : 478,011.90 = 203,190.43 : x
  2. Step 2: Convert to fraction form
    346,482.67/478,011.90 = 203,190.43/x
  3. Step 3: Cross multiply
    346,482.67x = 478,011.90 × 203,190.43
  4. Step 4: Simplify right side
    346,482.67x = 97,127,443,506.12
  5. Step 5: Solve for x
    x = 97,127,443,506.12/346,482.67
  6. Step 6: Final answer
    x = 280,324.10

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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.