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Finding the Fourth Proportional to 274,367.69, 378,642.08 and 153,501.74

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Solution

The fourth proportional to 274,367.69, 378,642.08 and 153,501.74 is: 211,840.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,367.69 : 378,642.08 = 153,501.74 : x
  2. Step 2: Convert to fraction form
    274,367.69/378,642.08 = 153,501.74/x
  3. Step 3: Cross multiply
    274,367.69x = 378,642.08 × 153,501.74
  4. Step 4: Simplify right side
    274,367.69x = 58,122,217,349.71
  5. Step 5: Solve for x
    x = 58,122,217,349.71/274,367.69
  6. Step 6: Final answer
    x = 211,840.60

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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.