Home / 331,637.47-497,561.36-118,400.81

Finding the Fourth Proportional to 331,637.47, 497,561.36 and 118,400.81

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Solution

The fourth proportional to 331,637.47, 497,561.36 and 118,400.81 is: 177,638.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,637.47 : 497,561.36 = 118,400.81 : x
  2. Step 2: Convert to fraction form
    331,637.47/497,561.36 = 118,400.81/x
  3. Step 3: Cross multiply
    331,637.47x = 497,561.36 × 118,400.81
  4. Step 4: Simplify right side
    331,637.47x = 58,911,664,968.89
  5. Step 5: Solve for x
    x = 58,911,664,968.89/331,637.47
  6. Step 6: Final answer
    x = 177,638.75

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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.