Home / 229,088.02-316,157.26-128,492.50

Finding the Fourth Proportional to 229,088.02, 316,157.26 and 128,492.50

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Solution

The fourth proportional to 229,088.02, 316,157.26 and 128,492.50 is: 177,328.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,088.02 : 316,157.26 = 128,492.50 : x
  2. Step 2: Convert to fraction form
    229,088.02/316,157.26 = 128,492.50/x
  3. Step 3: Cross multiply
    229,088.02x = 316,157.26 × 128,492.50
  4. Step 4: Simplify right side
    229,088.02x = 40,623,836,730.55
  5. Step 5: Solve for x
    x = 40,623,836,730.55/229,088.02
  6. Step 6: Final answer
    x = 177,328.51

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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.