Home / 175,288.90-242,307.31-156,356.31

Finding the Fourth Proportional to 175,288.90, 242,307.31 and 156,356.31

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Solution

The fourth proportional to 175,288.90, 242,307.31 and 156,356.31 is: 216,136.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,288.90 : 242,307.31 = 156,356.31 : x
  2. Step 2: Convert to fraction form
    175,288.90/242,307.31 = 156,356.31/x
  3. Step 3: Cross multiply
    175,288.90x = 242,307.31 × 156,356.31
  4. Step 4: Simplify right side
    175,288.90x = 37,886,275,880.97
  5. Step 5: Solve for x
    x = 37,886,275,880.97/175,288.90
  6. Step 6: Final answer
    x = 216,136.20

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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.