Home / 307,104.47-423,805.02-178,068.23

Finding the Fourth Proportional to 307,104.47, 423,805.02 and 178,068.23

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Solution

The fourth proportional to 307,104.47, 423,805.02 and 178,068.23 is: 245,734.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,104.47 : 423,805.02 = 178,068.23 : x
  2. Step 2: Convert to fraction form
    307,104.47/423,805.02 = 178,068.23/x
  3. Step 3: Cross multiply
    307,104.47x = 423,805.02 × 178,068.23
  4. Step 4: Simplify right side
    307,104.47x = 75,466,209,776.51
  5. Step 5: Solve for x
    x = 75,466,209,776.51/307,104.47
  6. Step 6: Final answer
    x = 245,734.65

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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.