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Finding the Fourth Proportional to 305,279.65, 457,804.45 and 127,798.93

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Solution

The fourth proportional to 305,279.65, 457,804.45 and 127,798.93 is: 191,650.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,279.65 : 457,804.45 = 127,798.93 : x
  2. Step 2: Convert to fraction form
    305,279.65/457,804.45 = 127,798.93/x
  3. Step 3: Cross multiply
    305,279.65x = 457,804.45 × 127,798.93
  4. Step 4: Simplify right side
    305,279.65x = 58,506,915,931.22
  5. Step 5: Solve for x
    x = 58,506,915,931.22/305,279.65
  6. Step 6: Final answer
    x = 191,650.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.