Home / 389,531.23-584,361.47-136,746.16

Finding the Fourth Proportional to 389,531.23, 584,361.47 and 136,746.16

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Solution

The fourth proportional to 389,531.23, 584,361.47 and 136,746.16 is: 205,141.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,531.23 : 584,361.47 = 136,746.16 : x
  2. Step 2: Convert to fraction form
    389,531.23/584,361.47 = 136,746.16/x
  3. Step 3: Cross multiply
    389,531.23x = 584,361.47 × 136,746.16
  4. Step 4: Simplify right side
    389,531.23x = 79,909,185,955.42
  5. Step 5: Solve for x
    x = 79,909,185,955.42/389,531.23
  6. Step 6: Final answer
    x = 205,141.93

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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.