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Finding the Fourth Proportional to 310,072.32, 427,902.72 and 175,925.76

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Solution

The fourth proportional to 310,072.32, 427,902.72 and 175,925.76 is: 242,779.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,072.32 : 427,902.72 = 175,925.76 : x
  2. Step 2: Convert to fraction form
    310,072.32/427,902.72 = 175,925.76/x
  3. Step 3: Cross multiply
    310,072.32x = 427,902.72 × 175,925.76
  4. Step 4: Simplify right side
    310,072.32x = 75,279,111,222.07
  5. Step 5: Solve for x
    x = 75,279,111,222.07/310,072.32
  6. Step 6: Final answer
    x = 242,779.20

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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.