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Finding the Fourth Proportional to 405,995.50, 560,235.84 and 242,619.59

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Solution

The fourth proportional to 405,995.50, 560,235.84 and 242,619.59 is: 334,792.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,995.50 : 560,235.84 = 242,619.59 : x
  2. Step 2: Convert to fraction form
    405,995.50/560,235.84 = 242,619.59/x
  3. Step 3: Cross multiply
    405,995.50x = 560,235.84 × 242,619.59
  4. Step 4: Simplify right side
    405,995.50x = 135,924,189,804.11
  5. Step 5: Solve for x
    x = 135,924,189,804.11/405,995.50
  6. Step 6: Final answer
    x = 334,792.36

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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.