Home / 211,925.49-292,288.01-139,402.86

Finding the Fourth Proportional to 211,925.49, 292,288.01 and 139,402.86

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Solution

The fourth proportional to 211,925.49, 292,288.01 and 139,402.86 is: 192,264.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,925.49 : 292,288.01 = 139,402.86 : x
  2. Step 2: Convert to fraction form
    211,925.49/292,288.01 = 139,402.86/x
  3. Step 3: Cross multiply
    211,925.49x = 292,288.01 × 139,402.86
  4. Step 4: Simplify right side
    211,925.49x = 40,745,784,537.71
  5. Step 5: Solve for x
    x = 40,745,784,537.71/211,925.49
  6. Step 6: Final answer
    x = 192,264.67

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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.