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Finding the Fourth Proportional to 272,967.84, 376,776.72 and 172,432.80

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Solution

The fourth proportional to 272,967.84, 376,776.72 and 172,432.80 is: 238,008.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,967.84 : 376,776.72 = 172,432.80 : x
  2. Step 2: Convert to fraction form
    272,967.84/376,776.72 = 172,432.80/x
  3. Step 3: Cross multiply
    272,967.84x = 376,776.72 × 172,432.80
  4. Step 4: Simplify right side
    272,967.84x = 64,968,664,804.42
  5. Step 5: Solve for x
    x = 64,968,664,804.42/272,967.84
  6. Step 6: Final answer
    x = 238,008.50

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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.