Home / 318,829.90-439,979.90-175,603.28

Finding the Fourth Proportional to 318,829.90, 439,979.90 and 175,603.28

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Solution

The fourth proportional to 318,829.90, 439,979.90 and 175,603.28 is: 242,329.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,829.90 : 439,979.90 = 175,603.28 : x
  2. Step 2: Convert to fraction form
    318,829.90/439,979.90 = 175,603.28/x
  3. Step 3: Cross multiply
    318,829.90x = 439,979.90 × 175,603.28
  4. Step 4: Simplify right side
    318,829.90x = 77,261,913,574.07
  5. Step 5: Solve for x
    x = 77,261,913,574.07/318,829.90
  6. Step 6: Final answer
    x = 242,329.57

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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.