Home / 208,275.47-287,420.30-112,782.24

Finding the Fourth Proportional to 208,275.47, 287,420.30 and 112,782.24

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Solution

The fourth proportional to 208,275.47, 287,420.30 and 112,782.24 is: 155,639.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,275.47 : 287,420.30 = 112,782.24 : x
  2. Step 2: Convert to fraction form
    208,275.47/287,420.30 = 112,782.24/x
  3. Step 3: Cross multiply
    208,275.47x = 287,420.30 × 112,782.24
  4. Step 4: Simplify right side
    208,275.47x = 32,415,905,114.49
  5. Step 5: Solve for x
    x = 32,415,905,114.49/208,275.47
  6. Step 6: Final answer
    x = 155,639.57

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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.