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Finding the Fourth Proportional to 213,518.95, 294,643.48 and 118,019.95

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Solution

The fourth proportional to 213,518.95, 294,643.48 and 118,019.95 is: 162,860.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,518.95 : 294,643.48 = 118,019.95 : x
  2. Step 2: Convert to fraction form
    213,518.95/294,643.48 = 118,019.95/x
  3. Step 3: Cross multiply
    213,518.95x = 294,643.48 × 118,019.95
  4. Step 4: Simplify right side
    213,518.95x = 34,773,808,777.43
  5. Step 5: Solve for x
    x = 34,773,808,777.43/213,518.95
  6. Step 6: Final answer
    x = 162,860.53

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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.