Home / 487,148.52-672,296.40-272,297.64

Finding the Fourth Proportional to 487,148.52, 672,296.40 and 272,297.64

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Solution

The fourth proportional to 487,148.52, 672,296.40 and 272,297.64 is: 375,788.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,148.52 : 672,296.40 = 272,297.64 : x
  2. Step 2: Convert to fraction form
    487,148.52/672,296.40 = 272,297.64/x
  3. Step 3: Cross multiply
    487,148.52x = 672,296.40 × 272,297.64
  4. Step 4: Simplify right side
    487,148.52x = 183,064,723,100.50
  5. Step 5: Solve for x
    x = 183,064,723,100.50/487,148.52
  6. Step 6: Final answer
    x = 375,788.32

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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.