Home / 292,420.65-403,900.38-211,720.35

Finding the Fourth Proportional to 292,420.65, 403,900.38 and 211,720.35

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Solution

The fourth proportional to 292,420.65, 403,900.38 and 211,720.35 is: 292,434.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,420.65 : 403,900.38 = 211,720.35 : x
  2. Step 2: Convert to fraction form
    292,420.65/403,900.38 = 211,720.35/x
  3. Step 3: Cross multiply
    292,420.65x = 403,900.38 × 211,720.35
  4. Step 4: Simplify right side
    292,420.65x = 85,513,929,818.73
  5. Step 5: Solve for x
    x = 85,513,929,818.73/292,420.65
  6. Step 6: Final answer
    x = 292,434.65

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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.