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Finding the Fourth Proportional to 216,703.14, 299,064.06 and 121,210.38

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Solution

The fourth proportional to 216,703.14, 299,064.06 and 121,210.38 is: 167,278.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,703.14 : 299,064.06 = 121,210.38 : x
  2. Step 2: Convert to fraction form
    216,703.14/299,064.06 = 121,210.38/x
  3. Step 3: Cross multiply
    216,703.14x = 299,064.06 × 121,210.38
  4. Step 4: Simplify right side
    216,703.14x = 36,249,668,356.94
  5. Step 5: Solve for x
    x = 36,249,668,356.94/216,703.14
  6. Step 6: Final answer
    x = 167,278.00

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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.