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Finding the Fourth Proportional to 319,307.52, 440,628.54 and 181,468.50

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Solution

The fourth proportional to 319,307.52, 440,628.54 and 181,468.50 is: 250,417.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,307.52 : 440,628.54 = 181,468.50 : x
  2. Step 2: Convert to fraction form
    319,307.52/440,628.54 = 181,468.50/x
  3. Step 3: Cross multiply
    319,307.52x = 440,628.54 × 181,468.50
  4. Step 4: Simplify right side
    319,307.52x = 79,960,200,210.99
  5. Step 5: Solve for x
    x = 79,960,200,210.99/319,307.52
  6. Step 6: Final answer
    x = 250,417.53

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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.