Home / 216,857.02-299,269.42-121,363.50

Finding the Fourth Proportional to 216,857.02, 299,269.42 and 121,363.50

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Solution

The fourth proportional to 216,857.02, 299,269.42 and 121,363.50 is: 167,485.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,857.02 : 299,269.42 = 121,363.50 : x
  2. Step 2: Convert to fraction form
    216,857.02/299,269.42 = 121,363.50/x
  3. Step 3: Cross multiply
    216,857.02x = 299,269.42 × 121,363.50
  4. Step 4: Simplify right side
    216,857.02x = 36,320,384,254.17
  5. Step 5: Solve for x
    x = 36,320,384,254.17/216,857.02
  6. Step 6: Final answer
    x = 167,485.40

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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.