Home / 316,281.10-436,478.40-173,041.21

Finding the Fourth Proportional to 316,281.10, 436,478.40 and 173,041.21

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Solution

The fourth proportional to 316,281.10, 436,478.40 and 173,041.21 is: 238,802.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,281.10 : 436,478.40 = 173,041.21 : x
  2. Step 2: Convert to fraction form
    316,281.10/436,478.40 = 173,041.21/x
  3. Step 3: Cross multiply
    316,281.10x = 436,478.40 × 173,041.21
  4. Step 4: Simplify right side
    316,281.10x = 75,528,750,474.86
  5. Step 5: Solve for x
    x = 75,528,750,474.86/316,281.10
  6. Step 6: Final answer
    x = 238,802.60

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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.