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Finding the Fourth Proportional to 292,298.72, 403,439.64 and 171,478.82

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Solution

The fourth proportional to 292,298.72, 403,439.64 and 171,478.82 is: 236,680.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,298.72 : 403,439.64 = 171,478.82 : x
  2. Step 2: Convert to fraction form
    292,298.72/403,439.64 = 171,478.82/x
  3. Step 3: Cross multiply
    292,298.72x = 403,439.64 × 171,478.82
  4. Step 4: Simplify right side
    292,298.72x = 69,181,353,408.42
  5. Step 5: Solve for x
    x = 69,181,353,408.42/292,298.72
  6. Step 6: Final answer
    x = 236,680.32

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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.