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Finding the Fourth Proportional to 405,796.63, 560,178.72 and 242,510.76

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Solution

The fourth proportional to 405,796.63, 560,178.72 and 242,510.76 is: 334,772.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,796.63 : 560,178.72 = 242,510.76 : x
  2. Step 2: Convert to fraction form
    405,796.63/560,178.72 = 242,510.76/x
  3. Step 3: Cross multiply
    405,796.63x = 560,178.72 × 242,510.76
  4. Step 4: Simplify right side
    405,796.63x = 135,849,364,322.13
  5. Step 5: Solve for x
    x = 135,849,364,322.13/405,796.63
  6. Step 6: Final answer
    x = 334,772.04

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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.