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Finding the Fourth Proportional to 369,756.16, 510,262.32 and 199,990.24

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Solution

The fourth proportional to 369,756.16, 510,262.32 and 199,990.24 is: 275,985.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,756.16 : 510,262.32 = 199,990.24 : x
  2. Step 2: Convert to fraction form
    369,756.16/510,262.32 = 199,990.24/x
  3. Step 3: Cross multiply
    369,756.16x = 510,262.32 × 199,990.24
  4. Step 4: Simplify right side
    369,756.16x = 102,047,483,839.76
  5. Step 5: Solve for x
    x = 102,047,483,839.76/369,756.16
  6. Step 6: Final answer
    x = 275,985.89

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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.