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Finding the Fourth Proportional to 477.04, 715.56 and 152.40

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Solution

The fourth proportional to 477.04, 715.56 and 152.40 is: 228.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    477.04 : 715.56 = 152.40 : x
  2. Step 2: Convert to fraction form
    477.04/715.56 = 152.40/x
  3. Step 3: Cross multiply
    477.04x = 715.56 × 152.40
  4. Step 4: Simplify right side
    477.04x = 109,051.34
  5. Step 5: Solve for x
    x = 109,051.34/477.04
  6. Step 6: Final answer
    x = 228.60

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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.