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Finding the Fourth Proportional to 262,312.40, 392,885.40 and 202,955.60

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Solution

The fourth proportional to 262,312.40, 392,885.40 and 202,955.60 is: 303,982.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,312.40 : 392,885.40 = 202,955.60 : x
  2. Step 2: Convert to fraction form
    262,312.40/392,885.40 = 202,955.60/x
  3. Step 3: Cross multiply
    262,312.40x = 392,885.40 × 202,955.60
  4. Step 4: Simplify right side
    262,312.40x = 79,738,292,088.24
  5. Step 5: Solve for x
    x = 79,738,292,088.24/262,312.40
  6. Step 6: Final answer
    x = 303,982.17

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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.