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Finding the Fourth Proportional to 369,549.80, 554,543.40 and 243,554.30

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Solution

The fourth proportional to 369,549.80, 554,543.40 and 243,554.30 is: 365,475.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,549.80 : 554,543.40 = 243,554.30 : x
  2. Step 2: Convert to fraction form
    369,549.80/554,543.40 = 243,554.30/x
  3. Step 3: Cross multiply
    369,549.80x = 554,543.40 × 243,554.30
  4. Step 4: Simplify right side
    369,549.80x = 135,061,429,606.62
  5. Step 5: Solve for x
    x = 135,061,429,606.62/369,549.80
  6. Step 6: Final answer
    x = 365,475.59

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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.