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Finding the Fourth Proportional to 1,503.02, 2,254.92 and 477.02

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Solution

The fourth proportional to 1,503.02, 2,254.92 and 477.02 is: 715.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,503.02 : 2,254.92 = 477.02 : x
  2. Step 2: Convert to fraction form
    1,503.02/2,254.92 = 477.02/x
  3. Step 3: Cross multiply
    1,503.02x = 2,254.92 × 477.02
  4. Step 4: Simplify right side
    1,503.02x = 1,075,641.94
  5. Step 5: Solve for x
    x = 1,075,641.94/1,503.02
  6. Step 6: Final answer
    x = 715.65

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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.