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Finding the Fourth Proportional to 292,491.71, 438,774.48 and 100,403.57

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Solution

The fourth proportional to 292,491.71, 438,774.48 and 100,403.57 is: 150,618.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,491.71 : 438,774.48 = 100,403.57 : x
  2. Step 2: Convert to fraction form
    292,491.71/438,774.48 = 100,403.57/x
  3. Step 3: Cross multiply
    292,491.71x = 438,774.48 × 100,403.57
  4. Step 4: Simplify right side
    292,491.71x = 44,054,523,965.88
  5. Step 5: Solve for x
    x = 44,054,523,965.88/292,491.71
  6. Step 6: Final answer
    x = 150,618.03

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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.