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Finding the Fourth Proportional to 224,840.95, 310,298.21 and 128,048.92

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Solution

The fourth proportional to 224,840.95, 310,298.21 and 128,048.92 is: 176,717.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,840.95 : 310,298.21 = 128,048.92 : x
  2. Step 2: Convert to fraction form
    224,840.95/310,298.21 = 128,048.92/x
  3. Step 3: Cross multiply
    224,840.95x = 310,298.21 × 128,048.92
  4. Step 4: Simplify right side
    224,840.95x = 39,733,349,732.63
  5. Step 5: Solve for x
    x = 39,733,349,732.63/224,840.95
  6. Step 6: Final answer
    x = 176,717.59

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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.