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Finding the Fourth Proportional to 545,693.13, 818,533.94 and 213,266.25

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Solution

The fourth proportional to 545,693.13, 818,533.94 and 213,266.25 is: 319,897.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,693.13 : 818,533.94 = 213,266.25 : x
  2. Step 2: Convert to fraction form
    545,693.13/818,533.94 = 213,266.25/x
  3. Step 3: Cross multiply
    545,693.13x = 818,533.94 × 213,266.25
  4. Step 4: Simplify right side
    545,693.13x = 174,565,662,815.19
  5. Step 5: Solve for x
    x = 174,565,662,815.19/545,693.13
  6. Step 6: Final answer
    x = 319,897.12

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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.