Home / 438,307.60-657,461.40-202,111.60

Finding the Fourth Proportional to 438,307.60, 657,461.40 and 202,111.60

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Solution

The fourth proportional to 438,307.60, 657,461.40 and 202,111.60 is: 303,167.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,307.60 : 657,461.40 = 202,111.60 : x
  2. Step 2: Convert to fraction form
    438,307.60/657,461.40 = 202,111.60/x
  3. Step 3: Cross multiply
    438,307.60x = 657,461.40 × 202,111.60
  4. Step 4: Simplify right side
    438,307.60x = 132,880,575,492.24
  5. Step 5: Solve for x
    x = 132,880,575,492.24/438,307.60
  6. Step 6: Final answer
    x = 303,167.40

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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.