Home / 319,416.48-437,595.75-307,451.16

Finding the Fourth Proportional to 319,416.48, 437,595.75 and 307,451.16

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Solution

The fourth proportional to 319,416.48, 437,595.75 and 307,451.16 is: 421,203.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,416.48 : 437,595.75 = 307,451.16 : x
  2. Step 2: Convert to fraction form
    319,416.48/437,595.75 = 307,451.16/x
  3. Step 3: Cross multiply
    319,416.48x = 437,595.75 × 307,451.16
  4. Step 4: Simplify right side
    319,416.48x = 134,539,320,948.57
  5. Step 5: Solve for x
    x = 134,539,320,948.57/319,416.48
  6. Step 6: Final answer
    x = 421,203.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.