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Finding the Fourth Proportional to 319,075.40, 478,443.80 and 94,404.89

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Solution

The fourth proportional to 319,075.40, 478,443.80 and 94,404.89 is: 141,557.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,075.40 : 478,443.80 = 94,404.89 : x
  2. Step 2: Convert to fraction form
    319,075.40/478,443.80 = 94,404.89/x
  3. Step 3: Cross multiply
    319,075.40x = 478,443.80 × 94,404.89
  4. Step 4: Simplify right side
    319,075.40x = 45,167,431,445.94
  5. Step 5: Solve for x
    x = 45,167,431,445.94/319,075.40
  6. Step 6: Final answer
    x = 141,557.24

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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.