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Finding the Fourth Proportional to 380,307.68, 570,427.28 and 114,127.68

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Solution

The fourth proportional to 380,307.68, 570,427.28 and 114,127.68 is: 171,181.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,307.68 : 570,427.28 = 114,127.68 : x
  2. Step 2: Convert to fraction form
    380,307.68/570,427.28 = 114,127.68/x
  3. Step 3: Cross multiply
    380,307.68x = 570,427.28 × 114,127.68
  4. Step 4: Simplify right side
    380,307.68x = 65,101,542,075.11
  5. Step 5: Solve for x
    x = 65,101,542,075.11/380,307.68
  6. Step 6: Final answer
    x = 171,181.24

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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.