Home / 389,365.44-537,323.30-217,281.60

Finding the Fourth Proportional to 389,365.44, 537,323.30 and 217,281.60

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Solution

The fourth proportional to 389,365.44, 537,323.30 and 217,281.60 is: 299,848.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,365.44 : 537,323.30 = 217,281.60 : x
  2. Step 2: Convert to fraction form
    389,365.44/537,323.30 = 217,281.60/x
  3. Step 3: Cross multiply
    389,365.44x = 537,323.30 × 217,281.60
  4. Step 4: Simplify right side
    389,365.44x = 116,750,466,341.28
  5. Step 5: Solve for x
    x = 116,750,466,341.28/389,365.44
  6. Step 6: Final answer
    x = 299,848.05

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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.