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Finding the Fourth Proportional to 369,516.80, 554,493.90 and 243,521.30

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Solution

The fourth proportional to 369,516.80, 554,493.90 and 243,521.30 is: 365,426.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,516.80 : 554,493.90 = 243,521.30 : x
  2. Step 2: Convert to fraction form
    369,516.80/554,493.90 = 243,521.30/x
  3. Step 3: Cross multiply
    369,516.80x = 554,493.90 × 243,521.30
  4. Step 4: Simplify right side
    369,516.80x = 135,031,075,370.07
  5. Step 5: Solve for x
    x = 135,031,075,370.07/369,516.80
  6. Step 6: Final answer
    x = 365,426.08

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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.