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Finding the Fourth Proportional to 490,784.99, 736,186.71 and 153,818.18

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Solution

The fourth proportional to 490,784.99, 736,186.71 and 153,818.18 is: 230,730.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,784.99 : 736,186.71 = 153,818.18 : x
  2. Step 2: Convert to fraction form
    490,784.99/736,186.71 = 153,818.18/x
  3. Step 3: Cross multiply
    490,784.99x = 736,186.71 × 153,818.18
  4. Step 4: Simplify right side
    490,784.99x = 113,238,898,031.92
  5. Step 5: Solve for x
    x = 113,238,898,031.92/490,784.99
  6. Step 6: Final answer
    x = 230,730.16

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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.