Home / 212,263.71-292,897.23-143,502.71

Finding the Fourth Proportional to 212,263.71, 292,897.23 and 143,502.71

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Solution

The fourth proportional to 212,263.71, 292,897.23 and 143,502.71 is: 198,015.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,263.71 : 292,897.23 = 143,502.71 : x
  2. Step 2: Convert to fraction form
    212,263.71/292,897.23 = 143,502.71/x
  3. Step 3: Cross multiply
    212,263.71x = 292,897.23 × 143,502.71
  4. Step 4: Simplify right side
    212,263.71x = 42,031,544,792.01
  5. Step 5: Solve for x
    x = 42,031,544,792.01/212,263.71
  6. Step 6: Final answer
    x = 198,015.69

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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.