Home / 426,923.16-640,384.74-160,743.38

Finding the Fourth Proportional to 426,923.16, 640,384.74 and 160,743.38

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Solution

The fourth proportional to 426,923.16, 640,384.74 and 160,743.38 is: 241,115.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,923.16 : 640,384.74 = 160,743.38 : x
  2. Step 2: Convert to fraction form
    426,923.16/640,384.74 = 160,743.38/x
  3. Step 3: Cross multiply
    426,923.16x = 640,384.74 × 160,743.38
  4. Step 4: Simplify right side
    426,923.16x = 102,937,607,608.02
  5. Step 5: Solve for x
    x = 102,937,607,608.02/426,923.16
  6. Step 6: Final answer
    x = 241,115.07

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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.