Home / 208,214.40-287,332.44-112,720.26

Finding the Fourth Proportional to 208,214.40, 287,332.44 and 112,720.26

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Solution

The fourth proportional to 208,214.40, 287,332.44 and 112,720.26 is: 155,552.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,214.40 : 287,332.44 = 112,720.26 : x
  2. Step 2: Convert to fraction form
    208,214.40/287,332.44 = 112,720.26/x
  3. Step 3: Cross multiply
    208,214.40x = 287,332.44 × 112,720.26
  4. Step 4: Simplify right side
    208,214.40x = 32,388,187,343.23
  5. Step 5: Solve for x
    x = 32,388,187,343.23/208,214.40
  6. Step 6: Final answer
    x = 155,552.10

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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.