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Finding the Fourth Proportional to 401,498.68, 602,247.54 and 121,015.90

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Solution

The fourth proportional to 401,498.68, 602,247.54 and 121,015.90 is: 181,523.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,498.68 : 602,247.54 = 121,015.90 : x
  2. Step 2: Convert to fraction form
    401,498.68/602,247.54 = 121,015.90/x
  3. Step 3: Cross multiply
    401,498.68x = 602,247.54 × 121,015.90
  4. Step 4: Simplify right side
    401,498.68x = 72,881,528,075.89
  5. Step 5: Solve for x
    x = 72,881,528,075.89/401,498.68
  6. Step 6: Final answer
    x = 181,523.71

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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.