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Finding the Fourth Proportional to 443,511, 612,045.18 and 242,307

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Solution

The fourth proportional to 443,511, 612,045.18 and 242,307 is: 334,383.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,511 : 612,045.18 = 242,307 : x
  2. Step 2: Convert to fraction form
    443,511/612,045.18 = 242,307/x
  3. Step 3: Cross multiply
    443,511x = 612,045.18 × 242,307
  4. Step 4: Simplify right side
    443,511x = 148,302,831,430.26
  5. Step 5: Solve for x
    x = 148,302,831,430.26/443,511
  6. Step 6: Final answer
    x = 334,383.66

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1.5x scale

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.