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Finding the Fourth Proportional to 213,307.90, 320,014.50 and 63,547.62

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Solution

The fourth proportional to 213,307.90, 320,014.50 and 63,547.62 is: 95,337.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,307.90 : 320,014.50 = 63,547.62 : x
  2. Step 2: Convert to fraction form
    213,307.90/320,014.50 = 63,547.62/x
  3. Step 3: Cross multiply
    213,307.90x = 320,014.50 × 63,547.62
  4. Step 4: Simplify right side
    213,307.90x = 20,336,159,840.49
  5. Step 5: Solve for x
    x = 20,336,159,840.49/213,307.90
  6. Step 6: Final answer
    x = 95,337.12

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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.