Home / 642,968.40-964,492.71-169,654.23

Finding the Fourth Proportional to 642,968.40, 964,492.71 and 169,654.23

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Solution

The fourth proportional to 642,968.40, 964,492.71 and 169,654.23 is: 254,491.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,968.40 : 964,492.71 = 169,654.23 : x
  2. Step 2: Convert to fraction form
    642,968.40/964,492.71 = 169,654.23/x
  3. Step 3: Cross multiply
    642,968.40x = 964,492.71 × 169,654.23
  4. Step 4: Simplify right side
    642,968.40x = 163,630,268,055.66
  5. Step 5: Solve for x
    x = 163,630,268,055.66/642,968.40
  6. Step 6: Final answer
    x = 254,491.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.