Home / 314,530.90-434,070.80-236,867.49

Finding the Fourth Proportional to 314,530.90, 434,070.80 and 236,867.49

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Solution

The fourth proportional to 314,530.90, 434,070.80 and 236,867.49 is: 326,890.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,530.90 : 434,070.80 = 236,867.49 : x
  2. Step 2: Convert to fraction form
    314,530.90/434,070.80 = 236,867.49/x
  3. Step 3: Cross multiply
    314,530.90x = 434,070.80 × 236,867.49
  4. Step 4: Simplify right side
    314,530.90x = 102,817,260,582.21
  5. Step 5: Solve for x
    x = 102,817,260,582.21/314,530.90
  6. Step 6: Final answer
    x = 326,890.81

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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.